Brake rattle silencer



Aug-25, 1931; F. G. wrrHRow BRAKE RATTLE S'ILENCER Filed Oct. 21, 1929 m m V G o \m T.

Qiiorne s Patented Aug. 25, 193i 1 '7 I Y I znnoyne. .wmxnow,eonfq }m g i m 7 5? I iBRA EBATTLEsILENGER Applicatio'nfi led October 2 11-1929. serial K654011336,

==Tl1is invention relates to a brake rodwittle pi-vot pin or -rivet 7i -flhe'erm is permanently silencerap articulerly adepted iforapplication secured at its :lower end 'to e hbll lblillflil l' ock to a j oint constructien'oirenautomobile 'where sh'aft8which extends'across the frame oi -the 3; the connectionbetween-the service brake pedali a-utn1obile and at itsends is eqnipped with and'thereck shafts fol-operating brek'erods, i other armsmot shown from 'which thebrake- 55 wvhichextend-*ferwerd andte the "rear to the i'Ods eXtendte the service'brake's :Eoi the'rear 'se rvie brakes, is-made'. Thisconnection inlwheels of thefautomobile.

eludes several pivot joi nts wliich are subject .Aiseconderm 9 at' its lo'wel end isefm med towvean-a'nd' after i 'tinie'"become loosened "with forklO. teaembracethe lewemend of m with consequent rzittl-e when the automobile is the are shaped member 3, bein'gpivotellyrconi 60.

driven over the road end it is a primerygob-i nected. thereto asin'dicated at 11. h'l he'mpper ject of my invention to providessimplerattle" end? ofthez arm T9 ist'fixedion 'aisencindmock wprevention'or s,ilenoi11;-;"--device wliich' will shaft?ilikewise'ihavin'g at: its:ends.2othem1rms l "eliminaterattling O1 =-th6 -possibi'lity' thereofto which:rodsarerconnectediand 'bxtendisfor- 15 hithe pivot jointenoted. ward to the service brakes fonth'e fzrontwlleelt 1 An*nn'derstzin'din' g oii'the inventioiir-foh the?" 0f therautomobile. ntta imnent-'of the-ends-statedmay be' had q Theconstruetion'idescribedreontuinspiqots from thefollowing description taken irrconw at 5, "Zgand 1'1" and-WhBlfiilIEWDkiQ ismonn ection with the accompanying drawings, in tnectedwith thesmember 3:! -A lli ef thesepivot 20 which, I v :connectionser'e liable tobeeomedoosewbeee usei 7'0 Z-.1'Fig 1 i= tiveviexv,'=with*perts in of-weer aftere; periods OfflSBL'VlGQEWllIhflfiOH- sectionlillnstrating the use of the silencer sequent rproductiomofundesired:noiseseand device of'my invention ind showing the same? rattl'ings whenethe automobile is driven ever eppl iedandin; operativeconnection. the road. *Fig. 2 is 21' somewhetenla-rgedperspective The silencerdevice, which I haveprbvidd 'view' efthe silencerd'evice esm'ade inerccerd toelimin'ate-endasilenersmttlingsnoises in the ence with my in-ventionqand I v constmictionrdescribedg isl-znade firomimsihgle Fig. 8 is i rargmentary plen viewof"'the'nlength' 'ofwspring wiremwliich i s'rzbenta at? i constructioirshown in 1, ipertibulhrly :middlepoint, as alt?13;into atelnsedsbenmiithe 'where thero'd leading-from the service brake sectiensi 14: of: the wire" mrtending"lircmi-ethb pedal connectswith a yoke forming a partbend lying closely. adjacent to'eaclnother'for ef'theinotor vehicle constriiction; V we short distance.= "They then diwergemntawtrd,

- luike-r eterenc'e characters 'refer't'o likeqzmrtsr es indacatedl at"-15, 'zlndnthem areeextended v in'tbe difierentfignres'ofthe drawings entoelong sections"l6 parallel:- tmeuclnbther.

35 llntheconstriiction'e rod=1=leads rearw-zirdlyw At -theends ofis'ectiens l'fi spningrceils were 35 from the service brake pedal of-theantemocoiled outwardlyfromweeoh ethemendvfsom whil udit rear enid is conn'gctgl t fy k 2,-awtherceilsiether re1atively zlang seetions 1-87exthespzred sides cfwliich pass at the sides of tend normally at an obtuse angle toithplane an are shaped connecting member 3 formed of'se'ctions lfifwEnch of the'sectionsa IS'IfiElIHlfrom flat metal and positioned in a vertical= hatesinerttntnrned end w which isrheiit 2% plane, the end of the yoke 2 having pivotal (tangles!zsomewhatfiess: tham902z tonthe2le1ggth connection to said member 3 between its ends. of the respective sectioned 18. To the upper end of the member 3 a link 4 is ,Applyingthis device w hebritke drodfoper pivotally connected at the one end, at 5. The: rating meohen-ism first deseribedptherdevicie is p link is formed from sheet metal bent longi- 'giSPl' fiP i aiy p'ass at 'BflC-hfSidF tudinallv into U-shape so that a side thereo-fu'ofi thewmembei: 3, .andithezmarrowecterminal passes at each side of member 3 to which it: portionconsisting ofthebend lfizandfidjweent is pivotelly connected. An arm 6 at its uper-sections-l is :insertediintoitherlink 41:1v atuthe per end extends between the sides of the linka underside-between:theepposite:sidesthrerof.

=; 59 4 and is pivotally connected thereto by the Theldivergingapertsilfiirpemnitsconerofivthf sections 16 to pass along each side of the upper portion of the member 3. The coils 1' lie adjacent the yoke 52. The sections 18 extend from said coils downwardly and to the rear, one at each side lower part of the member 3 and the ends 19 hook around the rear edge of the arm 9, all as fully shown in Fig. 1.

After the device has been applied in this manner a retaining key 20 formed from a single length of wire bent into U-shape with its free ends 21 bent so as to be closely adjacent to each other is passed through the coils 17 above the yoke 2, thereby holding the device from rearward or downward movement. It is evident that .in the application of the device to the brake construction described it is very much sprung out of shape and the tendency thereof to return to normal form causes an exertion of pressure on the link 4 affecting the two pivots joints at 5 and 7 at its ends; also on the yoke 2 affecting its pivot connection with member 3: and also upon arm 9 affecting pivot 11 which connects it with the member 3. This holds such pivot connections in firm engagement and serves to eliminate rattlings and the like which would otherwise occur from looseness of the parts, especially after wear of the parts had made the pivot joints loose.

The construction described is very easily applied and when once in place is insured against disengagement. The invention has proved very practical and satisfactory for the purposes for which it is designed. The claims appended hereto define the invention which is to be considered comprehensive of all forms of construction coming within the scope of said claims.

I claim:

1. A device of the class described, formed from-a single length of spring wire bent at its middle to form a close bend for a short distance, thereby providing a narrow terminal portion having wire sections located close together, said sections diverging outwardly, then extending in relatively long sides substantially parallel to each other, said sides 7 being continued in spring coils coiled out wardly away from each other, the coils thence extending in other relatively long side sections'spaced apart and parallel to each other and located in a plane at an obtuse angle to said first mentioned relatively long sides and terminating in inturned portions located at an angle of less than to the parts from which they are bent.

' 2. A device of the class described comprising two coils each having sections of wire extending therefrom at an obtuse angle with respect to each other, said sections being spaced apart and substantially parallel to each other, one of the pairs of wire sections having straight free end portions turned inwardly toward each other and the other of said sections being converged toward each other to form a narrow terminal portion connected by an integral bend.

3. In combination, an are shaped member located in a vertical plane, a yoke pivotally connected to said member between its ends and extending forward therefrom, a rod con nected to and extending forward from the yoke, a link pivotally connected to and extending rearwardly from the upper end of said member, an arm pivotally connected to and extending downwardly from the rear end of said link, a second arm pivotally connected to and extending upwardly from the lower end of said member, said arms at their opposite ends being attached to'roek shafts and a spring tension device engaging at one end against the lower side of the link and extending to and engaging said yoke, extending therefrom to the second mentioned arm and having means to detachably connect the same with said second arm, said spring tension device being sprung out of normal form to exert pressure upon all of the pivots of said member, link, yoke, and arms, for the purposes described.

4. A construction containing the elements in combination defined in claim 3, said spring tension device having spring coils adjacent said'yoke and a retaining member passing through and engaging with said coils and bearing against the upper side of said yoke and against the front edge of said are shaped member to maintain the spring tension de vice in place.

5. A device of the class described formed from a single length of spring wire bent at its middle to form a bend, the wires extending from said bend lying closely together for a short distance and then diverging outwardly being thence extended into two relatively long sections substantially parallel to each other spring coils at the ends of said sections, other long sections extending from the coils at an acute angle to the first elongated sections, said second elongated sections having inturned end portions, and a member formed from a single length of wire bent into U-shape and having free end portions close together. passing through said coils, for the purposes described.

In testimony whereof I affix my signature.

FLOYD G. WITHROWV. 

